2 Copyright (C) 2003 Reed Mideke.
4 This file is part of GtkRadiant.
6 GtkRadiant is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 GtkRadiant is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GtkRadiant; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 // Code by reyalP aka Reed Mideke
26 // Based on spritemodel source code by hydra
31 class CBackgroundImage {
36 // which components of a vec3_t correspond to x and y in the image
40 CBackgroundImage(VIEWTYPE vt);
41 // ~CBackgroundImage();
43 float m_alpha; // vertex alpha
46 // x and y axis are in relation to the screen, not world, making rendering
47 // the same for each view type. Whoever sets them is responsible for
49 // units are world units.
50 // TODO should be private
51 float m_xmin, m_ymin, m_xmax, m_ymax;
53 // load file, create new tex, cleanup old tex, set new tex
54 bool Load(const char *filename);
56 void Cleanup(); // free texture, free tex, set make tex NULL
57 bool SetExtentsMM(); // set extents by ET mapcoordsmaxs/mapcoordsmins
58 bool SetExtentsSel(); // set extents by selection
62 { return (m_tex && (m_xmin != m_xmax) && (m_ymin != m_ymax)); }
65 class CBackgroundRender : public IGL2DWindow {
70 virtual ~CBackgroundRender();
77 // IGL2DWindow IGL3DWindow interface
89 void Draw2D(VIEWTYPE vt);
94 extern CBackgroundImage backgroundXY, backgroundXZ, backgroundYZ;
95 extern CBackgroundRender render;